Branding: This viewer contains changes that customize the interface, change the location where crash reports are sent and updates downloaded from. The intention is to provide a replacement for the functions Linden Lab won't support in a third party viewer. If you're a developer, you can look at my changes to see what I did to produce your own.

Installer: This version features an improved installer that automatically grabs files from existing SL installations, and only downloads what can't be obtained from the user's system. This drastically reduces the size of the download: Instead of the 35MB or so of the official viewer, each update only needs to download about 5MB.